[Tools] Remove bump-canary-version.sh.

It has been superseded by increment-version.py, and now that the canary
infrastructure has started using the new tool, we can safely remove the old
one.
Merge pull request #764 from wang16/fix_js_api

[Android] Fix a missed place when renaming js_api to jsapi
Merge pull request #762 from rakuco/remove-old-bump-canary-version-tool

[Tools] Remove bump-canary-version.sh.
[Android] Fix xwalk_runtime_lib_apk build failed on canary.

Rewrite the "prepare_xwalk_app_template" target with python
due to a bug in gyp system, that "copies" action doesn't respect
the "dependencies".

BUG=https://github.com/crosswalk-project/crosswalk/issues/771
Merge pull request #772 from junmin-zhu/gyp

[Android] Fix xwalk_runtime_lib_apk build failed on canary.
[Android] Remove unnecessary jar action for activity and application.

After the compilation of user defined activity and application,
there is no need to package it to a jar since the classes in the
'out/classes' have been included when doing dexing.
[Android] Integration manifest parser with app build tools.

1. Add "--manifest=/path/to/manifest/file" support in make_apk.py
2. Adjust the icon API in the manifest parser, it shoud provide all
   information of the icon from the manifest.
3. Fix the icon path incorrect issue for "--icon" option.
4. Add unit test for make_apk.py, run it through following steps:
   * Switch to the outside of "src" directory.
   * Run the command "python src/xwalk/app/tools/android/make_apk_test.py
     --build-dir=src/out --target=Release"
Merge pull request #703 from junmin-zhu/integration

[Android] Integration manifest parser with app build tools.
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Merge pull request #773 from yongsheng/rm-unneeded

[Android] Remove unnecessary jar action for activity and application.
[Android] Update the manifest json parser as the changed field of "app".

1 Retrieve the field of "app" in manifest.json.
2 Retrieve the field of "launch" in the value of "app".
3 Retrieve the filed of "local_path" in the value of "launch".
4 Get the value of "local_path".

BUG=#778